Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866642 | Method and apparatus for determining the diameter of rail vehicle wheels | Hans W. Obrig, Helmut Wittkopp | 1989-09-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866642 | Method and apparatus for determining the diameter of rail vehicle wheels | Hans W. Obrig, Helmut Wittkopp | 1989-09-12 |